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Questions about the harmonic features of ION7300 series meters

Questions

Q1 - How are the Harmonic currents and Voltages obtained ?Q2 - Is the Harmonic current a part of the RMS current that we see under the I reading ?Q3 - If we were to install a Harmonic filter to capture the Harmonics would the incoming current be reduced any at all ?

A1 - Through a Fast Fourier Transform (FFT) of the digitized wavefrorms. A2 - Yes. The RMS current is a sample-by-sample RMS. So it is the RMS of all frequencies observed by the meter.

A3 - Possibly. The answer depends on the type of filter, location of meter with respect to the filter and load, and the type of load

Legacy KB System (APS) Data: RESL207704 V1.0, Originally authored by MaTh on 03/19/2012, Last Edited by MaTh on 03/19/2012 Related ranges: Engineering Knowledge Applied to Power Management, ION7300